Caterpillars on brassicas
I don't want to use harmful pesticides in my garden but last year the leaves of my radishes were almost totally eaten by cabbage white caterpillars. While this wasn't disastrous for the radishes as they were more or less ready to pick I don't want it to happen to leaf crops this year. Can anyone suggest anything to keep the butterflies from laying their eggs on my brassicas?
- 22 Jan, 2009